Equal Amounts of Work Are Performed on Two Bodies, a and B

Multiple Choice

Equal amounts of work are performed on two bodies, A and B, initially at rest, and of masses m and 2m respectively. The relation between their speeds immediately after the work has been done on them is:

A) vA = $\sqrt{2}$ vB.
B) vA = 2vB.
C) vA = vB.
D) vB = $\sqrt{2}$ vA.
E) vB = 2vA.